Factory timing specs for 84 360 needed

[4spdragtop]

Anyone got the factory timing specs for D150 84 360 4 bbl? Im not having any issues, just wanna try to improve MPG....

Thanks
Steve

 

[4spdragtop]

???

 

[4spdragtop]

anyone??

 

[KitCarlson]

Typically 10 BTDC, should be on hood sticker. Might try 14 degrees and see if it pings under load.

 

[4spdragtop]

Thanks Kit is somewhere around 8 with the vacuum line undone and plugged. Not much vacuum on that line though. Would you know if Im right, that this vacuum line runs from a switch/valve on the upper rad hose to the distributor? Factory reference map is still on the inner fneder.

Thanks
Steve

 

[KitCarlson]

Can you post a picture of the Vacuum map. It should show line going to distributor. Vacuum signal should be good above idle, the switch on water temperature is often for EGR or air pump control. If you have a vacuum gauge, use it to test the carb ports and find the ported one, that has near zero at idle, then increases above idle.

 

[4spdragtop]

Thanks KC, here is a pic of the "map" you can see clearly where it routes(dizzy to coolant switch 3 port). The 2nd pic is of where the vacuum advance hose leads to (red tracer). I thought the vac adv in older vehicles went to the carb??

 

[bad440]

yeah older than that!lol